I can successfully connect from a VAX (4000-700a) running VMS v7.3 to the PDP-11/53 (again, running RSTS/E v10.1) via: $ set host/appl=rterm 61.4 Terminal control is a bit wonky, but it works. This is what crashes from the Alpha running VMS v8.3. I can also add that $ set host/appl=rterm 61.4 crashes out in a similar way on an Alpha running V8.2. However, it can be used to successfully connect to a VAX running VAX/VMS V5.5-2. On the other hand, VAX/VMS V5.5-2 does not have the /APPLICATION qualifier to SET HOST so outgoing RTERM connections are not possible from it. Regards, Peter Coghlan.